Lap desk



FIG. 1 is a bottom perspective view of the present lap desk, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a right side elevational view thereof, the left side elevational view being a mirror image thereof.

The crisscross pattern schematically depicted in FIGS. 1, 2, 3, 5, and 6 indicates a change in material that is continuous throughout the surface on which the pattern is shown. 

The ornamental design for a lap desk, as shown and described. 